I switched my 28/42/54 with 11-32 9 spd using a DaVinci modified SRAM X9 rear derailleur and Campy Record Ergo 10's to a a full Campy Record Long Cage with a 11-29 cassette and 26/39/53 rings up front. BEST thing I ever did. Highs and lows are comparable and way less overlap and more gears. Bike shifts flawlessly throughout the entire range. Using FSA front rings and a Shimano Dura Ace triple front derailleur.